Dash Insert W/O Air 1974 stepside

[LynnJr]

I am putting a 74 stepside back together and the new dash has two openings for air conditioning vents and a insert.
My truck doesn't have A/C and I need a insert that will cover up both vent holes.
Luckily my neighbor has a similar truck but his has wood grain for the insert and a large cheyenne emblem as well.
I see they sell brushed aluminum inserts but don't know which one I need? Are all the dashes the same and I just order one without A/C?